Add TeamdriveDeleteJob with updated example and test

Summary: Allows deleting a Team Drive by treamdriveId or Teamdrive instance.

Test Plan: Added TeamdriveDeleteJobTest and updated the teamdrive example so selected Team Drives can be deleted;

Reviewers: dvratil

Reviewed By: dvratil

Subscribers: kde-pim, #libkgapi

Tags: #kde_pim, #libkgapi

Maniphest Tasks: T10521

Differential Revision: https://phabricator.kde.org/D19693